Digital photography is nothing short of a revolution in the way they make and manipulate. However, apply the basic principles of photography with digital cinema. Both require a lens to focus the light, and a trigger to move the light into the camera to rent. The main difference between digital and film photography is like making the recordings.
Previously, it was the movie in a dark room with various chemicals (none of which have developed, have been veryenvironment). The development process of the film produces "negative" which are necessary in order to be processed first image has been produced using print. Needless to say, when the shutter was originally pulled over a long period of time that you see actually the product of your image abandoned building. With the digital image is recorded using an electronic sensor. This sensor is composed of millions of individual "pixels" or picture elements that convert light into aZero or one (binary code). So instead of waiting for days or weeks (at best) hours to see the image to see a digital camera, almost instantaneously.
The quality of the photos with a digital camera depends largely on the number of pixels it has. This is commonly referred to as "resolution" digital camera "can be specified as a size (800 x 600), or the number of pixels per inch. 800 x 600 is a common resolution for computer screens. Displays a screen with thisResolution of 800 pixels from side to side, and 600 from top to bottom, for an amount of 480,000 pixels. Modern digital photography typically uses a much higher resolution of the computer screen average up in millions of pixels. Thus, a camera has a resolution of 2048 x 1536 3.1 megapixels.
We know that each pixel is represented by a number. The range of these pixels is determined by the size of the population. Can be in black and white imagesProduced by Pixel only 8 bits in length. A quick review of binary arithmetic tells us that this is an 8-bit number is a decimal number between 0 and 256. For this reason, and in black and white picture is 255 shades of gray plus black and white 0, 256
For color, we need more bits. With 16 bits per pixel, we can have a color graphics with 65,536 colors. 24-bit port millions. Most digital cameras now use 24-bit, with some practitionersDevices to use all 48 bits for a huge 280 billion colors. That a lot of color!
Several factors influence the quality of a digital camera. Pixel resolution is generally considered the most important. Choosing and at a reasonable pixel resolution, you should consider the size of the images you want to print - or if you want to print the picture at all. The number of pixels in an image does not change, so larger images will be fewer pixels per inch, whichto a loss of details, which are in continuous degradation of the image is larger.
Most photo labs to print images at 300 pixels per inch. Use this as a starting point to calculate the resolution megapixel digital camera. Two-megapixel camera with 300 pixels per inch print sizes up to 5 for production. 8 "x 3. 8", less than the standard 4 "x8". Given four-megapixel camera, producing an expression, at 300 pixels per inch and 8 .2 "x 5.4".
There isNothing prevents you to print larger images, of course. These are only indicative. A 200-pixel-per-inch image is not as strong as the standard 300 pixels per inch, but for many purposes can still be quite acceptable. In this resolution, you can bet that the images up to 8 .7 "x 5 8" with a two-megapixel camera, all the way up to 12.2 "x 8 .2" the image of a camera with four megapixels.
Now we pixels megapixels and swimming in the head, it's time to stepand enjoy all the advantages of modern digital photography offered.
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